Posts Tagged ‘saic’

There’s no shortage of DoD acronyms. There was that hosted payload on one of the SES spacecraft, CHIRP (Commercially Hosted Infrared Payload). The topper is now MASTER: Modular Architecture for Signal-processing, Tracking and Exploitation Research program. Yeah, seems a bit of a stretch. It comes to us via the rocket scientists at Northrup Grumman:

MASTER supports the government ground processing effort for the Air Force’s Commercially Hosted IR Payload (CHIRP) program’s on-orbit period. An experimental CHIRP sensor is hosted on a commercial SES satellite operating in geosynchronous orbit over the United States. The SES satellite was successfully launched on Sept. 21 from French Guiana.

“MASTER provides an important sensor-agnostic ground processing capability for our customer,” said Ron Alford, Northrop Grumman’s director, sensor exploitation systems and Colorado campuses. “The architecture utilizes an enterprise approach with an open architecture and plug-and-play components. In future data processing systems, measurable cost savings can be enjoyed by using the MASTER architecture to provide common processing capabilities across sensor types and system constellations without the need for customized processing chains.”

“This approach not only reduces costs, but facilitates new missions, new sensor/data providers and the participation of third parties in specialized processing algorithms for new and changing missions,” Alford said.

The enterprise architecture developed for the MASTER program can be used by multiple types of sensors without the redundant cost of redeveloping the ground mission processing software, but currently is prototyped against Overhead Persistent Infrared (OPIR) sensors.

MASTER has been successful in integrating and using algorithms provided by outside third parties as well as processing data from multiple operational OPIR sensors and new experimental simulated data. The MASTER architecture has also enabled innovative parallel data processing with multiple plug-and-play algorithms, along with significant advances in star and static-source line-of-site correction methods.

The MASTER contract is a follow-on effort to the Alternative Infrared Satellite System program, begun in 2006 and renamed Third Generation Infrared Surveillance as a technology maturation program. MASTER has been focused on developing an open, plug-and-play, sensor-agnostic processing architecture for the government to use in evaluating whole earth-staring array sensors.

Yes, you read that right: “earth-staring array sensors.” Our favorite is AFRTS (Armed Forces Radio & Television Services). Pronounced as you would expect.

The Commercially Hosted Infrared Payload (CHIRP), set to piggy-back on the SES-2 spacecraft later this year, passed thermal vacuum chamber testing. According to DefPro, all is nominal and you can’t get any better than that in the space business…

SES-USG today announced that the Commercially Hosted Infrared Payload (CHIRP) and its host spacecraft, SES-2, have completed thermal vacuum (TVAC) testing.
The experimental wide field-of-view sensor was designed by Science Applications International Corporation (SAIC) for the U.S. Air Force Space and Missile Systems Center. After integration onto the SES-2 spacecraft, built by Orbital Sciences Corp., the TVAC tests were conducted to demonstrate the sensor’s ability to withstand the space environment it will experience following the launch this August. A preliminary review of the test data indicates the CHIRP payload thermal performance was as expected.
Victoria Kennedy, CHIRP Program Manager at SES noted, “The TVAC was a key milestone for CHIRP, and puts the program well on track for the remaining environmental tests.”
The TVAC is one of a series of recent successful tests completed by the CHIRP program. In January, the payload was integrated onto the SES-2 spacecraft and passed what is known as the initial post-mate electrical checkout. Following this milestone, an integrated ground-to-payload test was completed where the sensor was commanded from SAIC’s Mission Analysis Center in Seal Beach, CA through Orbital’s Mission Operations Center in Dulles, VA. Through this process, payload data, including images and state-of-health data were successfully transmitted. This demonstration was a key risk reduction activity in the development and testing of the CHIRP Ground Segment.
Brent Armand, CHIRP Program Manager at Orbital Sciences Corporation remarked, “The team is very pleased with the payload performance during TVAC. We are all systems go as we look forward to the upcoming vibration test campaign and the near-term completion and delivery of the SES-2 spacecraft.”

To simulate the hot and cold extremes possible in space, the thermal vacuum chamber can reach temperatures in a 600-degree F range from 302° F all the way down to minus 310° F. Wow, the best we can do as humans on earth is the 300-degree Club in Antarctica.

What’s next? Vibration testing, which includes random vibration, base-drive modal and quasi-static load tests – all conducted while the spacecraft is mounted on a shaker.

This NASA video does an excellent job of explaining these critical tests…